Leguminous extract heavy-metal-scavenging anti-pollution agent

Abstract

The present application relates to the use in topical application of at least one gramineous extract as an anti-pollution agent, and especially as an anti-pollution cosmetic agent. The application also relates to a cosmetic treatment process for protecting the body against the effects of pollution, in particular against the effects of heavy metals, by applying to keratin materials a composition containing, in a physiologically acceptable medium, an effective amount of at least one gramineous extract.

Description

[0001] 1. FIELD OF THE INVENTION[0002] The present application relates to the use, for example in topical application, of at least one gramineous plant extract as an anti-pollution agent, and to a cosmetic treatment process for protecting the keratin materials against the effects of pollution, in particular against the effects of heavy metals, which comprises the application to keratin materials of a composition containing, in a physiologically acceptable medium, at least one aqueous, alcoholic or aqueous-alcoholic gramineous extract.[0003] 2. DISCUSSION OF THE BACKGROUND[0004] Urban environments are regularly subjected to peaks of pollution. An individual in his daily environment, and particularly in an urban zone, may be subjected to a whole range of factors attacking keratin materials, and in particular the skin, the scalp and the hair, by various airborne pollutants. Atmospheric pollutants which are represented largely by the primary and secondary products of combustion represen...

AI Technical Summary

Benefits of technology

[0015] With pollution on the increase, there is a need to find other agents for effectively combating the harmful effect of pollutants on keratin materials and to prevent the adhesion of these pollutants on keratin materials, and in particular to avoid the degradation of cell respiration, the desquamation and accelerated ageing of keratin materials and especially the skin, and also to combat the dull complexion and the early formation of wrinkles and fine lines on the skin, to prevent hair from having a dull appearance and from becoming dirty, and to avoid irritation of the skin and also skin allergy phenomena and skin inflammation. The Inventors have now found, entirely surprisingly, that the use of an aqueous, alcoholic or aqueous-alcoholic gramineous extract makes it possible to protect keratin materials against the effects of pollutants and obtain these objects.

[0023] The expression "heavy-metal scavenger" means an agent which acts by complexing and / or chelating heavy metals so as to protect the skin and keratin materials and to prevent, attenuate and / or eliminate the deleterious effects of these metals.

[0029] When the composition comprises an aqueous or aqueous-alcoholic medium, it is possible to add a fatty (or oily) phase to this medium, so that the compositions of the invention are softer and more nourishing.

Problems solved by technology

Urban environments are regularly subjected to peaks of pollution.

These elements may react with the oxidizing agents and become impaired, which will promote the desquamation phenomena.

Thus, the harmful effects of pollution on keratin materials affect cell respiration of these keratin materials and are reflected by accelerated ageing of the skin, with a dull complexion and the early formation of wrinkles or fine lines, and also by a reduction in the vigor of the hair, which thus acquires a dull appearance.

In addition, due to pollution, the skin and hair become dirty more quickly.

Furthermore, pollution can cause irritations and allergic phenomena and inflammation on the skin.